Based on the ratios given, the number of people in each service is 8000 in the army, 16000 in the navy and 24000 in the air force.
<h3>What is the number of people in each service?</h3>
Given that 48000 people are in the defence services.
The defence services comprises of the army, navy and air force.
- The defence services are in the ratio 1:2:3
To determine the number of people in each service:
Total ratio = 1 + 2 + 3 = 6
- Number of people in each service = each service ratio/total ratio × 48000
Number in army = 1/6 × 48000 = 8000 persons
Number in Navy = 2/6 × 48000 = 16000 persons
Number in air force = 3/6 × 48000 = 24000 persons
Therefore, the number of people in each service is 8000 in the army, 16000 in the navy and 24000 on the air force.
Learn more about ratio at: brainly.com/question/25927869
If she gave all the kids in her class 1 piece of candy, and she had 7 left over, the equation is 97 - 7 = 90. There are 90 kids in her class.
DF=9x-39
DE=47
EF=3x+10
47+3x+10=9x-39
47+10+39=9x-3x
96=6x
16=x
Answer:
Step-by-step explanation:
Hello!
Given the variables
X: daily hotel room rate
Y: amount spent on the entertainment
See second attachment for scatter plot.
The population regression equation is E(Yi)= α + βXi
To estimate the y-intercept and the slope of the regression equation you have to apply the following formulas:

a= Y[bar]-bX[bar]
n= 9; ∑X= 945; ∑X²= 103325; ∑Y= 1134 ∑Y²= 148804; ∑XY= 123307
X[bar]= ∑X/n= 945/9= 105
Y[bar]= ∑Y/n= 1134/9= 126

a= 126 - 1.03*105= 17.49
^Y= 17.49 + 1.03Xi
Slope interpretation: The estimated average amount spent on entertainment increases 1.03 every time the daily hotel room rate increases one unit.
If the room rate for Chicago is $128 (X), to predict the mount spent in entertainment (Y) you have replace it in the estimated regression line:
^Y= 17.49 + 1.03Xi= 17.49 + 1.03*128= 149.33
The expected amount spent on entertainment for Chicago is $149.33
I hope this helps!
i donk know Step-by-step explanation: